A system for directing and controlling two separate streams of air to a kitchen
CA 2820509 C · Owner: Captive-Aire Systems, Inc. · Inventors: Perry, Nicholas I.; Luddy, Robert L.; Griffin, William B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of directing two streams of air a conditioned stream and an unconditioned stream into a kitchen having an exhaust hood through which air is exhausted from the kitchen the method comprising: a. directing the conditioned air stream into the kitchen and out an outlet in a vicinity of the exhaust hood; b. directing the unconditioned air stream into the kitchen and out an outlet positioned generally between the exhaust hood and the outlet for the conditioned air stream; c. controlling the velocity of one or both air streams such that a velocity of the conditioned air stream equals or exceeds a velocity of the unconditioned air stream; and d. wherein controlling the velocity of the one …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 20, 2005 and granted October 21, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 20, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.